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Stellar activity analysis of Barnard's Star: Very slow rotation and evidence for long-term activity cycle
B. Toledo-Padrón, J. I. González Hernández, C. Rodríguez-López +58
The search for Earth-like planets around late-type stars using ultra-stable spectrographs requires a very precise characterization of the stellar activity and the magnetic cycle of…
Absolute colors and phase coefficients of trans-Neptunian objects: HV-HR and relative phase coefficients
C. Ayala-Loera, A. Alvarez-Candal, J. L. Ortiz +4
The trans-Neptunian objects (TNOs) are small Solar System bodies at large distances from the Sun. As such, their physical properties are difficult to measure. Accurate determinatio…
First determination of the temperature of a lunar impact flash and its evolution
J. M. Madiedo, J. L. Ortiz, N. Morales
We report the first analysis of a flash produced by the impact of a meteoroid on the lunar surface and recorded both in the near-infrared and in the visible. Despite the fact that…
Activity of (2060) Chiron possibly caused by impacts?
Stefan Cikota, Estela Fernández-Valenzuela, Jose Luis Ortiz +5
The centaur 95P/(2060) Chiron is showing comet-like activity since its discovery, but the mass-loss mechanisms triggering its activity remained unexplained. Although the collision…